Green-route mediated synthesis of silver nanoparticles (AgNPs) from Syzygium cumini (L.) Skeels polyphenolic-rich leaf extracts and investigation of their antimicrobial activity

Medicinal plants are widely utilised by the African population since they have no harmful side effects and low cost compared with different treatments. The field of nanotechnology is the most active part of research in modern material's science. Though there are several chemicals as well as phy...

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Published in:	IET nanobiotechnology Vol. 12; no. 3; pp. 305 - 310
Main Authors:	Ojo, Oluwafemi A, Oyinloye, Babatunji E, Ojo, Adebola B, Ajiboye, Basiru O, Olayide, Israel I, Idowu, Olajumoke, Olasehinde, Oluwaseun, Fadugba, Abimbola, Adewunmi, Funmilayo
Format:	Journal Article
Language:	English
Published:	The Institution of Engineering and Technology 01-04-2018
Subjects:	African population AgNO3 solution antibacterial activity antimicrobial activity aromatic compounds biomedical materials capping agent eugenols Fourier transform infrared spectra Fourier transform infrared spectroscopy FTIR gram‐negative bacteria Escherichia coli gram‐positive Staphylococcus aureus green biosynthesis green‐route mediated synthesis human pathogenic growth medicinal plants metallic nanoparticles microorganisms nanofabrication nanomaterials nanomedicine nanoparticles nanotechnology physical methods polyphenolic‐rich leaf extracts Research Article Salmonella typhimurium silver silver nanoparticles size 1.40 mm size 1.45 mm size 2.75 mm Skeels polyphenolic‐rich leaf extracts Syzygium cumini terpenes ultraviolet spectra UV‐visible spectroscopy visible spectra antibacterial activity gram-negative bacteria Escherichia coli eugenols Fourier transform infrared spectra terpenes size 1.45 mm Ag nanofabrication metallic nanoparticles Salmonella typhimurium Syzygium cumini visible spectra gram-positive Staphylococcus aureus size 2.75 mm nanoparticles polyphenolic-rich leaf extracts AgNO3 solution physical methods FTIR nanotechnology green-route mediated synthesis medicinal plants Skeels polyphenolic-rich leaf extracts UV-visible spectroscopy capping agent nanomedicine aromatic compounds nanomaterials antimicrobial activity size 1.40 mm ultraviolet spectra silver nanoparticles green biosynthesis microorganisms biomedical materials human pathogenic growth silver Fourier transform infrared spectroscopy African population
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Summary:	Medicinal plants are widely utilised by the African population since they have no harmful side effects and low cost compared with different treatments. The field of nanotechnology is the most active part of research in modern material's science. Though there are several chemicals as well as physical methods, however, green synthesis of nanomaterials is the most emerging method of synthesis. Conventionally, chemical reduction is the most often applied approach for the preparation of metallic nanoparticle's however, in most of the synthesis protocols it cannot avoid the utilisation of toxic chemicals. Hence, the authors report an environmentally friendly, cost effective and green approach for synthesis of 1 mM AgNO3 solution using the polyphenolic-rich leaf extracts of Syzygium cumini (S. cumini) (L.) Skeels as a reducing and capping agent. The synthesised AgNPs are characterised by UV-Vis spectroscopy and Fourier transform infrared (FTIR) spectroscopy. FTIR analysis revealed that the AgNPs were stable due to eugenols, terpenes, and other different aromatic compounds present in the extract. The green biosynthesised S. cumini AgNPs significantly inhibited the growth of human pathogenic both gram-positive Staphylococcus aureus (1.40 mm) and gram-negative bacteria Escherichia coli (2.75 mm) and Salmonella typhimurium (1.45 mm) showing promising antimicrobial activity.
ISSN:	1751-8741 1751-875X 1751-875X
DOI:	10.1049/iet-nbt.2017.0127